package Servicios;

import DAO.DAOProgramaEducativo;
import Dominio.ProgramaEducativo;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class VisualizadorRequerimientoAcademico extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String evento = request.getParameter("evento");
        if(evento.equals("registraRA")){
            muestraFomRegistroRA(request,response);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

    private void muestraFomRegistroRA(HttpServletRequest request, HttpServletResponse response) {
        PrintWriter out = null;
        try{
            response.setContentType("text/html;charset=UTF-8");
            out = response.getWriter();
            String respuesta = "<table><tr><td>ProgramaEducativo:</td><td><select name='opcionespe' onChange='actualizaFormularioRA()'>"+opcionesComboPE()+"</select></td></tr>";
            respuesta+="<tr><td>Semestre:</td><td><select name='opcionesem' onChange='actualizaAsignaturas()'><option value='-1'>Seleccione</option></td></tr>";
            respuesta+="<tr><td>Asignatura:</td><td><select name='opcionesasig' onChange='actualizaRequeridas()'><option value='-1'>Seleccione</option></td></tr>";
            respuesta+="<tr><td colspan='2' align='center'><table id='tblAsignaturaReq'></table></td></tr>";
            respuesta+="<tr><td colspan='2' align='center'><input type='button' name='guardaReq' onclick='guardaReq()' />"
                    + "<input type='button' name='guardaSaleReq' onclick='guardaSaleReq()' />"
                    + "<input type='button' name='cancelaReq' onclick='cancelaReq()' /></td></tr></table>";
            out.println(respuesta);
        }
        catch (IOException ex) {
            Logger.getLogger(VisualizadorRequerimientoAcademico.class.getName()).log(Level.SEVERE, null, ex);
        }    
    }
    
    private String opcionesComboPE(){
        DAOProgramaEducativo daoprograma = new DAOProgramaEducativo();
        ArrayList<ProgramaEducativo> programas = daoprograma.listarProgramas();
        daoprograma.cerrarconexionAProgramas();
        String combo = "<option value='-1'>Seleccione una opci&oacute;n.</option>";
        for(int i=0;i<programas.size();i++){
            combo+="<option value='"+programas.get(i).getCvePrograma()+"'>"+programas.get(i).getNombre()+"</option>";
        }
        return combo;
    }
}
